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प्रश्न
Identify the following reaction as either oxidation or reduction:
Zn → Zn2+ + 2e-
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उत्तर
Oxidation
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संबंधित प्रश्न
Define a chemical bond.
Give electron dot diagram of the following:
Magnesium chloride
Name the following:
The shell closest to the nucleus of an atom
Give a reason
Physical properties of isotopes are different.
Give reason
Argon does not react.
State the type of bonding in the following molecules.
Calcium oxide
State the type of bonding in the following molecules.
Hydrogen chloride
Element M forms a chloride with the formula MCl2 which is solid with a high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen, and nitrogen.
Copy and complete the following table relating to the atomic structure of some elements:
| Element | Atomic Number | Mass Number | Number of protons | Number of Neutrons | Number of Electrons |
| Beryllium | 4 | 9 | |||
| Fluorine | 9 | 10 | |||
| Sodium | 12 | 11 | |||
| Aluminium | 27 | 13 | |||
| Phosphorus | 31 | 15 |
How many atoms of each kind are present in the following molecule:
carbon tetrachloride
